.container > nav {
  width: 100%; height: 80px;
  display: flex; justify-content: center; align-items: center;
  position: fixed; left: 0; top: 0;
  z-index: 1;

  > a {
    color: rgba(255, 255, 255, 0.8); font-size: 20px;
    white-space: nowrap;
    margin: 0 50px;

    &:nth-child(3) {
      width: 80px; height: 80px;
      flex-shrink: 0;
      background: #fff url("../images/avatar.jpg") no-repeat center;
      background-size: 100% auto;
      border: 3px solid #fff; border-radius: 50%;
      padding: 10px; margin-top: 40px;
    }
  }
}
